Which of the following best defines the word locomotive?
a. a self-propelled engine, powered by steam, diesel, or electricity, for pulling or, sometimes, pushing
b. a series or row of objects or parts
c. passing or extending across a continent
d. a horse-drawn coach that traveled over a fixed route with passengers, parcels, etc.
Please select the best answer from the choices provided

a. A self-propelled engine, powered by steam, diesel, or electricity, for pulling or, sometimes, pushing.

Explanation:

A locomotive is a motorized vehicle, moves across rails powered by some type of fuel. The first locomotives were powered by coal, and it was built in 1804. Later other types of locomotives were developed, such as those powered by fuels, such as diesel or electricity.

The locomotives have allowed the social and economic development of many countries to provide an economic means of transport that could cover long distances in a short time.

Electric locomotives are currently the most developed since they can reach higher speeds and are more ecological.

I hope this information can help you.

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explanation:

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.